Wiegand, Sebastian ; Flege, Stefan ; Baake, Olaf ; Ensinger, Wolfgang (2013)
Effect of Different Calcination Temperatures and Post Annealing on the Properties of Acetic Acid Based Sol-Gel (Na0.5K0.5)NbO3 (NKN) Thin Films.
In: Journal of Materials Science & Technology
doi: 10.1016/j.jmst.2012.11.012
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
(Na0.5K0.5)NbO3 (NKN) lead free thin films were synthesized by means of an acetic acid based sol-gel process on Pt/Ti/SiO2/Si substrates. Na-acetate, K-acetate and Nb-pentaethoxide were used as metal precursors and acetic acid as the solvent. The effect of different calcination temperatures on the properties of the NKN films was investigated by X-ray diffraction, scanning electron microscopy, leakage current and hysteresis measurements. Low calcination temperatures led to low currents at high electric fields whereas high calcination temperatures led to low currents at low electric fields. Based on these findings calcination at low temperature was combined with a post annealing treatment. Low leakage currents of 4×10−4 A/cm² at 150 kV/cm and 2Pr and 2Ec values of 28 μC/cm² and 150 kV/cm, respectively, could be obtained. All films were single phase NKN with random crystal orientations and no crack or pore formation was visible on the surface.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Wiegand, Sebastian ; Flege, Stefan ; Baake, Olaf ; Ensinger, Wolfgang |
| Art des Eintrags: | Bibliographie |
| Titel: | Effect of Different Calcination Temperatures and Post Annealing on the Properties of Acetic Acid Based Sol-Gel (Na0.5K0.5)NbO3 (NKN) Thin Films |
| Sprache: | Englisch |
| Publikationsjahr: | 2013 |
| Verlag: | Elsevier Science Publishing Company |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Materials Science & Technology |
| DOI: | 10.1016/j.jmst.2012.11.012 |
| Kurzbeschreibung (Abstract): | (Na0.5K0.5)NbO3 (NKN) lead free thin films were synthesized by means of an acetic acid based sol-gel process on Pt/Ti/SiO2/Si substrates. Na-acetate, K-acetate and Nb-pentaethoxide were used as metal precursors and acetic acid as the solvent. The effect of different calcination temperatures on the properties of the NKN films was investigated by X-ray diffraction, scanning electron microscopy, leakage current and hysteresis measurements. Low calcination temperatures led to low currents at high electric fields whereas high calcination temperatures led to low currents at low electric fields. Based on these findings calcination at low temperature was combined with a post annealing treatment. Low leakage currents of 4×10−4 A/cm² at 150 kV/cm and 2Pr and 2Ec values of 28 μC/cm² and 150 kV/cm, respectively, could be obtained. All films were single phase NKN with random crystal orientations and no crack or pore formation was visible on the surface. |
| Freie Schlagworte: | Sol-gel process, Na0.5K0.5)NbO3, Thin film, Perovskite, Lead-free, Piezo material |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 14 Jan 2013 11:55 |
| Letzte Änderung: | 05 Mär 2013 10:04 |
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